Drag each tile to the correct box. Match each modification to its effect on an ecosystem.
Many desert regions in the West were transformed
into lush urban areas and farmlands.
Water bodies in the Owens Valley and its
surrounding areas began to dry up.
Runoff containing disease-carrying organisms
contaminated soil and caused water pollution.
construction of the Los
Angeles aqueduct
construction of large highways
damming of the Colorado River

PLEASE HELP